Adsorption isotherm of multicomponent solution of Cu(II) ions, crystal violet, and methylene blue on Silica-Magnetite Porphyridium sp. algae hybrid

Algae-silica hybrid (HA-S) from Porphyridium sp. has been modified by coating particles of magnetite (Fe3O4) via a sol-gel process using (TEOS) to produce silica-magnetite algae hybrid (HA-SM). The produced material HA-SM was applied as adsorbent for the multicomponent solution adsorption of Cu(II)...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2020-05, Vol.857 (1), p.12010
Main Authors: Permatasari, D, Buhani, Rilyanti, M, Suharso
Format: Article
Language:English
Subjects:
Adsorption
Algae
Freundlich
Functional groups
HA-SM
Infrared spectrometers
Iron oxides
Isotherms
Magnetite
Methylene blue
Morphology
Silicon dioxide
Siloxanes
Sol-gel processes
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Summary:Algae-silica hybrid (HA-S) from Porphyridium sp. has been modified by coating particles of magnetite (Fe3O4) via a sol-gel process using (TEOS) to produce silica-magnetite algae hybrid (HA-SM). The produced material HA-SM was applied as adsorbent for the multicomponent solution adsorption of Cu(II) ions, crystal violet (CV), and methylene blue (MB). Identification of functional groups was performed by infrared spectrometer (IR) indicating that in HA-SM there are an active organic groups derived from Porphyridium sp., while silanol and siloxane derived from silica matrix. In addition, the results of the analysis using Scanning Electron Microscopy with Energy Dispersive X-Ray (SEM-EDX) showed HA-SM has more heterogeneous surface morphology. The adsorption model of the multicomponent solutions of Cu(II) ions, CV, and MB by HA-S and HA-SM tend to follow the model of Freundlich adsorption isotherm.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/857/1/012010